baber/WOPTO huggingface dataset:
Patent GB-750724-A (GB)
Title: Liquid fuel stoves
IPC: F24C5/04
Filed: 1954-03-26
Abstract: 750,724. Oil stoves; wick burners. TAGE ANDERS MARKSTEDT. March 26, 1954 [May 12, 1953], No. 8948/54. Classes 75(1) and 126. [Also in Group XIII] A liquid fuel stove comprises a fuel tank with a filling hole, a wick in a holder screwed into a flame control sleeve which is centrally attached to the bottom plate of an outer cylindrical casing with air inlets at its lower end and outlets at its top, a transverse plate secured to the casing and spaced from the bottom plate with a central hole of greater diameter than the control sleeve and an inner cylinder with holes at its upper end suspended within the casing and resting on the transverse plate. A wick holder 3 mounted on a fuel tank 1 screws into a sleeve 5 secured to the bottom plate 7 of the outer cylindrical casing 8. Air inlets 6, 9 are provided in the bottom plate 7 and casing 8 and outlets 10 are provided at the top of the casing 8. An annular transverse plate 11, providing a clearance round the sleeve 5, is secured to the casing 8 above the bottom plate 7 and an inner cylinder 19 rests on an asbestos ring 21 on the plate 11. Apertured transverse plates 26, 27, 28 form flame screens at the top of the inner cylinder and air holes 22, 23 are punched in the top of the inner cylinder, locating lugs 24 being formed in the process. A central wire 18 secured in a thimble 16 by a screw 20 enables the position of the inner cylinder to be adjusted. The casing wall is apertured at 15 between upper closing plates 13, 14. In a modification, Fig. 7 (not shown), the inner cylinder is permanently secured to the transverse plate, the air inlets in the bottom plate are replaced by gauze covered inlets in the outer casing, and the transverse flame screens in the inner cylinder are replaced by gauze covering the outlets at its top.
Patent GB-1461167-A (GB)
Title: Electrodynamic suspension and laterial positioning of a vehicle relative to a track
IPC: B60L13/04
Filed: 1974-02-27
Abstract: 1461167 Railway systems SIEMENS AG 27 Feb 1974 [28 Feb 1973] 8996/74 Heading B7L An electrodynamic vehicle and track suspension arrangement comprises a vehicle 1 on which are mounted primary superconductor loops 2 associated respectively with electrically conductive non-ferromagnetic plates 3 for the purposes of levitation, the plates being carried by track support arms 4 and each having its laterally outer region 5 upwardly curved in such a way that when the moving vehicle 1 is centrally disposed relative to the track the magnetic lines of force 6 follow paths of substantially the same shape as the curved regions 5 of the plates 3 and do not produce eddy currents therein. However when the vehicle is displaced laterally, e.g. in the direction of the arrow 7, lines of force intersect the region 5 approached by a loop 2 to produce eddy currents which produce restoring forces. The effectiveness of the guidance is increased by the use of further conductor loops 10 on the vehicle, the currents in which loops 10 are in opposite directions to those in the loops 2.
Patent GB-778367-A (GB)
Title: Improvements in or relating to a tool for making joints between a tube and a member inserted thereinto
Inventor: MACCORMACK CHARLES
IPC: B21D39/04
Filed: 1955-03-28
Abstract: 778,367. Jointing by stamping. WOODALL-DUCKHAM CONSTRUCTION CO., Ltd. Feb. 21, 1956 [March 28, 1955], No. 9000/55. Class 83 (4). [Also in Group XXVIII] A tube 1, Fig. 1, is connected to a tubular or solid member 3 inserted therein by means of a tool 6 which is securable around the tube and carries dimpling elements 19 which are screwed inwards to deform the tube 1 inwardly at a number of places 5 to form inward protuberances 4 of a sufficient depth to bite into the outer surface of member 3. In Fig. 1, two tubes 1, 2 are connected together by an inner sleeve 3, each tube being dimpled at three places 5 around its circumference by the tool 6 which comprises two segments 7, 8 connected together at one side by pivoted links 9 so that the ring can be opened out for fitting over the tubes 1, 2 after which the free ends of the segments are fastened by a toggle device or by a U-shaped clamp 14 pivoted at 12 in the segment 8 and engaging in a recess 18 in the segment 7, a thumb screw 17 serving to lock the clamp in its fastened position. The dimpling screws 19 are provided with apertured heads 22 engageable by a tommy-bar to facilitate rotation and replaceable washers 25 limit the amount by which the screws 19 can be screwed inwards. The pointed ends 21 of the screws may consist of a detachable hardened tip.
Patent GB-147264-A (GB)
Title: Improvements relating to telephone cables
IPC: H01B11/04
Filed: 1919-04-09
Abstract: 147,264. Pearson, G. C., and Johnson & Phillips. April 9, 1919. Cables and compound conductors.-In telephone cables having two-pair cores, the lengths of the twists in adjacent parts of each pair differ. but the total number of twists in the two pairs is the same; the centre portions of the short and long twists of the two pairs are arranged opposite and the two pairs laid together so that the section at any point, preferably the commencement, is that shown by Fig. 6. The elements of each pair may have alternately a long and a short twist, Fig. 3, or a series of long twists alternating with a series of short twists, Fig. 5. The actual lengths of twists in adjacent pairs are preferably different.
Patent GB-275691-A (GB)
Title: Improvements in or relating to electric lamp shades or the like
IPC: F21V17/06
Filed: 1926-12-28
Abstract: 275,691. Brown, J. P., Brown, H., and Brown, C. H. Dec. 28, 1926. Securing shades to holders; mounting shades directly on rods or tubes.-An electric lamp and shade holder carries an annular attachment member consisting of an internally threaded sleeve 19 with internal flanges 34, 35, a plate 22 riveted to a base portion 21, and a relatively rotatable retaining ring 25 provided with cam slots 26. These slots 26 engage with the outer arms 28 of gripping elements 24, which are pivotally mounted intermediate their ends on a ring 23 tightly mounted between the flanges 34, 35, the lower flange 35 being provided with a number of slots to allow of the movement of the gripping elements 24. A threaded spindle 30 engages with a lug 29 secured to the ring 22 and with a journal 33 secured to the ring 25, so that rotation of a milled head 31 on the spindle 30 causes relative rotation of the ring 25 and the inner ends of the gripping elements 24 are forced outwardly to grip the inner surface of a shade 37.
Patent GB-590749-A (GB)
Title: Apparatus for drawing an ellipse
IPC: B43L11/055
Filed: 1946-05-11
Abstract: 590,749. Pencil-holders. JONES, W. H. May 11, 1946, No. 9216/45. [Class 146 (iii)] [Also in Group XX] A marker for an ellipsograph (see Group XX) comprises a stud member 11 sliding in the radius arm 9 and having a lower portion secured to or integral with a clutch member 12 comprising fingers caused to grip the lead or graphite marker 13 by the internal conical surface 14a of the adjusting member 14 when the latter is rotated. The spring 15 maintains the marker in engagement with the drawing surface.
Patent GB-190675-A (GB)
Title: Improvements in or relating to paper and the like sheet folding machines
IPC: B65H45/14
Filed: 1922-03-30
Abstract: 190,675. Canadian - American Machinery Co., Ltd., (Liberty Folder Co.). March 30, 1922. Delivery apparatus; sheet feedtables.-Machines for folding paper by the aid of rollers and buckling- p l a t e s as described in Specifications 14631/07, 12653/08, 14893/14, and 123,475, [both in Class 100 (ii), Printing processes &c.], are constructed with a switch plate which can be set to direct a folded sheet to a delivery device or to a subsequent folder. The sheets are fed from an adjustable table B, Fig. 1, to rollers c, c' which direct the leading edge to a buckling-plate P formed of spaced members p'. p<3>, of which the plate p<1> is slotted to receive stops p", Fig. 2, depending from a stop plate p<12> which is angularly adjustable about a pivot p". The first fold is produced as the buckled paper passes between the rollers c'. c<2>. A switch F is then set so as to direct the folded sheet to a second set of folding- rollers c<3>, c<4>, c<5> and a buckling plate P<1>, the twice-folded sheet passing to delivery bands and belts d<11>, d<5>; or the switch may be set to direct the folded sheet to the delivery device without passing to the folding-rollers c<3> &c. The second set of buckling- folders may be replaced by an ordinary knife folder. The feed-table B is fitted with guides b<11>, and as formed of two outer sections which are secured on rods a' by means of screw-actuated clamping-rods, which can be released to enable one or more leaves to be inserted between the outer sections. These leaves are held in place by springs b<10> embracing the rods a<1>. The delivery belts d<11> pass over a driven roller d<6>, and a roller d<12> carried by an adjustable bracket. The roller d<6> is bored at its ends to receive a supporting axle d<19>, Fig. 6, which passes through the frame part a<5>, and is formed with a knurled head d<21> and with shoulders where this engages the frame and adjacent to the roller d<6>. The belts d<5> pass over spools d<4> carried by adjustable arms d', and over spools d<9>, d<10>, secured to axles d<7>, d<8>, which can be removed axially when it is desired to remove any of the spools.
Patent GB-730774-A (GB)
Title: Improvements in or relating to electric arc lamps
IPC: H05B31/00
Filed: 1952-04-10
Abstract: 730,774. Automatic arc control systems. STAUB, W., [trading as STAUB LICHTTECHNISCHE WERKSTATTE, W.]. April 10, 1952 [May 26, 1951], No. 9229/52. Class 38 (4). [Also in Group XL (a)] An electric &c. lamp has three symmetrically arranged carbons KR, KS. KT which are each. associated through transformer elements PR, Ps, PT, SR, Ss, ST with a line R, S, T of a multi-phase current network, wherein the carbons are so arranged that they lie on the surface of a cone, whose apical angle is obtuse, preferably an angle of 160 to 170 degrees, and are so supported by rods 2, platform 1 and links 3 that their longitudinal displacement is effected by an axial vertically movable control-rod 4 which is controlled by electromagnetic means. A clamping or setting plate 5 has a non-circular hole through which extends the rod 4, the plate 5 being tiltable and being connected by a tension spring 6 to the lever 7, supported in a bearing bracket 8. One end of the lever 7 carries by a spring 9 a U- shaped plunger 10, the limbs of which extend into coils 11 connected between two carbons KR and KT, and the other end carries a pneumatic dash-pot 12. Normally the rod 4 is held stationary by the edges of the plate 5 which is pulled to an inclined position by the spring 6. When the carbons burn away the arc potential and the attractive force of the coils 11 rise so that the plunger 10 is drawn further into the coils 11, thus allowing the plate 5 to rest on the platform 1 and the carbons to move closer together.
Patent GB-472331-A (GB)
Title: Improvements relating to driving gear for power presses and other machines
IPC: F16D11/04
Filed: 1936-03-28
Abstract: 472,331. Operating clutches. HORDERN, MASON, & EDWARDS, Ltd., EDWARDS, W. G., DEYKIN, R. F., and WILSON, G. S. March 28, 1936, No. 9239. [Class 80 (ii)] In a clutch for a power press or other machine, an axially-movable clutch key 5 in the driven shaft 7 is urged towards engagement by a spring 40, and is adapted to be retracted by the engagement with a projection 21 thereon of the wedge end 15 of a lever 12. An arm 27 extends through a slot in the lever 12 and has a notch 32 co-operating with a pin 30 fixed in the slot, the lower end of the arm 27 being pivoted on a block 28 slidable on a part 25 of a lever 22 connected by a link 24 to an operating pedal. The block can be secured by a screw 38 in either of the two positions shown in full and dotted lines respectively in Fig. 2. The lever 12 is urged towards the key by an adjustable spring 16, and the notch 32 is normally maintained in engagement with the pin 30 by a spring 33. With the block 28 secured in the position shown in full lines, the lever 12 is pulled downwards on depression of the pedal, allowing the clutch to engage. During the ensuing revolution of the shaft 7, the projection 21 engages the free end of the arm 27 to tilt the latter, causing the notch 32 to disengage from the pin 30. The lever 12 thus moves upwards and the clutch is disengaged at the end of the revolution, even if the pedal is not released. On release of the pedal, the notch again engages the pin. By securing the block 28 in the position shown in dotted lines, the free end of the arm 27 is moved out of the orbit of the projection 21, so that the clutch remains engaged so long as the pedal is depressed.
Patent GB-696196-A (GB)
Title: Improvements in and relating to electric cables
IPC: H01B7/20
Filed: 1952-04-10
Abstract: The aluminium sheath of an electric cable may be tinned by passing it through a tin bath, the process being facilitated by the use of ultra-sonic waves which act directly on the sheathing or through the tin bath.
Patent GB-1298998-A (GB)
Title: Process and apparatus for thermally converting hydrocarbons to olefins
Inventor: WOEBCKE HERMAN NICHOLAS
IPC: C07C4/04
Filed: 1970-02-26
Abstract: 1298998 Thermal cracking STONE & WEBSTER ENG CORP 26 Feb 1970 [26 Feb 1969 9 Feb 1970] 9297/70 Heading C5E Hydrocarbons are thermally cracked to olefins, particularly ethylene and propylene, by feeding an admixture thereof with steam at a weight ratio of steam to hydrocarbons of from 0À5-1À5 through a reaction tube having an inside diameter of 1À75 to 3 inches and being 35 to 130 feet long, maintaining the outlet pressure of the tube at above 45-75 PSIA, maintaining a high hydrocarbon partial plessure at the tube outlet (e.g. 15-44 PSIA), and maintaining a pressure drop across the tube length of 1-15 PSIA, while heating the hydrocarbon feed at a temperature and for a time sufficient to cause cracking to olefins. The feed may range from ethane to crude oil. Apparatus is also described and claimed comprising walls of refractory material defining a chamber, a plurality of radiant heat burners on the walls of said chamber, and at least one tube disposed, preferably vertically, within the chamber, said tube having a length within the chamber of 35 to less than 60 feet and an inside diameter of 1À75 to 3 inches. There may be a plurality of such tubes arranged in banks, each bank being fed by an inlet header to which the feed is passed via a convection pre-heat section, and each bank also having an outlet header connected to quenching apparatus.
Patent GB-561901-A (GB)
Title: Improvements in the regulation of universally operable dynamo electric machines
IPC: H02P9/22
Filed: 1942-07-04
Abstract: 561,901. Automatic control systems for a dynamo combined with an inductor alternator. MANDL, A., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. July 4, 1942, No. 9299. [Classes 35 and 38 (iv)] The invention relates to the regulation of the output of a machine having a field winding F cooperating with an armature winding A to produce direct current at DL and having also a winding AW usually in slots in one or more pole-faces, co-operating with the armature core to produce alternating current, say, of the order of 1000 cycles per second at AL. The machine has a wide speed range. The D.C. output is regulated by control of the excitation and the A.C. output by inductance and capacity in the A.C. circuit. As shown carbon pile resistances RV, RC in series with the field winding are controlled by voltage and current coils respectively in accordance with the D.C. output characteristics. The A.C. circuit contains a series condenser C and a choke CC is shunted across the armature terminals and variably saturated by a winding CS in accordance with the voltage at the terminals AL. Preferably the resistance cp of a carbon' pile regulator is arranged in a bridge with resistances a, b, c so that the saturating winding CS is normally current-less and increases in voltage at AL will operate the regulator to produce a rising current in the saturating winding CS. The condenser C is preferably arranged to resonate with the leakage inductance of the machine windings at some point within the speed range of the machine.
Patent GB-784709-A (GB)
Title: Fixed frequency amplifier
IPC: H05K1/18
Filed: 1954-03-30
Abstract: 784,709. Circuit assemblies for radio receivers. STANDARD COIL PRODUCTS CO., Inc. March 30, 1954 [Aug. 13, 1953], No. 9312/54. Class 37. An intermediate-frequency amplifier for a television receiver comprises a plurality of stages each of which comprises an amplifier valve mounted on a ceramic base on which the major portion of the associated circuit is printed. The input and output tuned circuits of the amplifier are mounted upon ceramic cylinders 80 and 60 respectively; each cylinder carries a coil and a silvered portion co-operating with a screw passing within the cylinder to form a variable capacitor tuning the corresponding coil. The input and output circuits of each stage are separated by a screen 95 having protruding fingers at each end which pass through slots in the ceramic base and are then deformed to hold the screen in place. The resistors of the circuit are deposited in printed form upon the ceramic base; fixed capacitors, such as capacitor 26, are of disc form and are soldered in place in slots in the ceramic base.
Patent GB-1416013-A (GB)
Title: Well drilling fluid and method
IPC: C12P19/06
Filed: 1974-03-01
Abstract: 1416013 Bacterial heteropolysaccharide KELCO CO 1 March 1974 9386/74 Heading C3U [Also in Division E1] A heteropolysaccharide is produced by cultivation of soil bacteria identified by reference to its cultural and morphological characteristics, preferably using the strain ATCC 21423 on a conventional nutrient medium.
Patent GB-1498038-A (GB)
Title: Non-woven fabrics
IPC: D04H1/488
Filed: 1975-02-28
Abstract: 1498038 Non-woven fabric; web formation BONDINA Ltd 28 Feb 1975 [1 March 1974] 9439/74 Headings DIN and D1R A non-woven web comprises first zones each of which extends in the length direction, is at least 10 cm wide and has a substantially uniform fibre content throughout the length and breadth of the zone, adjacent first zones having different fibre contents and merging into one another. As shown fibres of 3 to 8 denier from hopper 10 are formed into a web by cord or garnett 2 and cross-lapped to form a 190 cm wide web 1. A narrower web 3 is carded from coarser 20 dernier nylon fibres from hopper 11 and cross-laid onto web 1. The two layer web is randomised throughout its thickness by garnett 5 which operation also merges zone 8, Fig. 2, which is of 90 g/m<SP>2</SP> weight and has 40 g/m<SP>2</SP> of the coarser fibres with the 50 g/m<SP>2</SP> zones 7 to form intermediate zones 9. The continuous length of web may be bonded and coated with a thermoplastic adhesive. Interlinings 15 for jackets are then cut from the web, the stiffer zone 8 being used for the upper portion of the jacket. As described and claimed in Specification 1498037 the binder or binders may be applied to give second zones in which the nature and/or concentration of the binder is different in adjacent zones which may or may not correspond with the first zones. Thus zone 8 may receive a stiffer binder in greater concentration than do zone 7 with zones 9 receiving an intermediate treatment, e.g. a mixture of the two binder compositions, preferably the viscous or foamed aqueous binder compositions are applied by doctoring. Alternatively the binders may be sprayed or printed. The coating of adhesive may likewise be applied non-uniformly. Preferably within each zone the coating is discontinuous. It may be sprayed, scattered or printed. The fibres and binders may be coloured differently in different zones. In an alternative embodiment two webs of equal width are laid offset from one another. The two layer web may be randomised throughout its thickness by cording garnetting, air laying or a combination of these methods. A multizonal web may be formed in a single operation by feeding into a carding machine different amounts of fibres across the width of the card or by using a differential air flow through the condensing drum of an air layer web former. The multizonal web may be needled. In a further embodiment continuous filaments are spun from a single linear spinneret which provides coarser filaments at the centre of its line of orifices, the spinneret being oscillated somewhat in the direction of its line of orifices to produce some merging of the inner zone of coarser filaments with the other zone. At least one of the zones may contain fusible fibres, e.g. sheath-core fibres which can be fused on heating to provide autogeneous bonding.  The web may be calendered or slit.
Patent GB-1176981-A (GB)
Title: A Method and Device for the Electroerosive Machining of Current-Conducting Materials
Inventor: LIVSHITS ABRAM LAZAREVICH
IPC: B23H1/02
Filed: 1967-02-28
Abstract: 1,176,981. Electro-erosion. EXPERTMENTALNY NAUCHNO - ISSLEDOVATELSKY INSTITUT METALLOREZHUSCHIKH STANKOV. 28 Feb., 1967, No. 9468/67. Heading B3V. [Also in Division H3] In the electro-erosion of metals, each machining cycle T has at least three pulses of voltage U and current J comprising a high voltage 1 to break down the gap, a high current pulse 2 to melt, evaporate and partially scavenge the products of erosion and a protective pulse 3 to form a protective coating on the electrode. Each cycle comprises a plurality of pulses 1, 2, 3 and a single high voltage and current pulse 4 to complete the scavenging. The ignition pulses 1 are produced by an individual generator 9, Fig. 2, and the other pulses 2, 3, 4 are produced by a master generator 5. Each generator comprises a transistorized blocking oscillator 12, Fig. 3, supplying four transistorized monostable flip-flops, 14-14<SP>111</SP>, which may be connected in series or parallel by switches 13<SP>1</SP>-13<SP>111</SP>. The pulse frequency is varied by a rheostat 18. The output therefrom is passed through a coincidence circuit (15), Fig. 5 (not shown) and a transistorized pre-amplifier (16) to a power amplifier comprising a plurality of power transistors (17). The bases of the latter are supplied through saturable transformers (25) whose secondaries are connected to the collectors to provide positive feedback. A device 10, Fig. 2, is provided to eliminate the effects of a short-circuit.